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<FONT color="green">001</FONT>    /* <a name="line.1"></a>
<FONT color="green">002</FONT>     Copyright 2009-2010    Regents of the University of Colorado.  <a name="line.2"></a>
<FONT color="green">003</FONT>     All rights reserved. <a name="line.3"></a>
<FONT color="green">004</FONT>    <a name="line.4"></a>
<FONT color="green">005</FONT>     Licensed under the Apache License, Version 2.0 (the "License"); <a name="line.5"></a>
<FONT color="green">006</FONT>     you may not use this file except in compliance with the License. <a name="line.6"></a>
<FONT color="green">007</FONT>     You may obtain a copy of the License at <a name="line.7"></a>
<FONT color="green">008</FONT>    <a name="line.8"></a>
<FONT color="green">009</FONT>     http://www.apache.org/licenses/LICENSE-2.0 <a name="line.9"></a>
<FONT color="green">010</FONT>    <a name="line.10"></a>
<FONT color="green">011</FONT>     Unless required by applicable law or agreed to in writing, software <a name="line.11"></a>
<FONT color="green">012</FONT>     distributed under the License is distributed on an "AS IS" BASIS, <a name="line.12"></a>
<FONT color="green">013</FONT>     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. <a name="line.13"></a>
<FONT color="green">014</FONT>     See the License for the specific language governing permissions and <a name="line.14"></a>
<FONT color="green">015</FONT>     limitations under the License.<a name="line.15"></a>
<FONT color="green">016</FONT>     */<a name="line.16"></a>
<FONT color="green">017</FONT>    <a name="line.17"></a>
<FONT color="green">018</FONT>    package org.uimafit.pipeline;<a name="line.18"></a>
<FONT color="green">019</FONT>    <a name="line.19"></a>
<FONT color="green">020</FONT>    import java.io.IOException;<a name="line.20"></a>
<FONT color="green">021</FONT>    import java.util.ArrayList;<a name="line.21"></a>
<FONT color="green">022</FONT>    import java.util.Iterator;<a name="line.22"></a>
<FONT color="green">023</FONT>    import java.util.List;<a name="line.23"></a>
<FONT color="green">024</FONT>    <a name="line.24"></a>
<FONT color="green">025</FONT>    import org.apache.uima.UIMAException;<a name="line.25"></a>
<FONT color="green">026</FONT>    import org.apache.uima.analysis_engine.AnalysisEngine;<a name="line.26"></a>
<FONT color="green">027</FONT>    import org.apache.uima.analysis_engine.AnalysisEngineProcessException;<a name="line.27"></a>
<FONT color="green">028</FONT>    import org.apache.uima.collection.CollectionException;<a name="line.28"></a>
<FONT color="green">029</FONT>    import org.apache.uima.collection.CollectionReader;<a name="line.29"></a>
<FONT color="green">030</FONT>    import org.apache.uima.jcas.JCas;<a name="line.30"></a>
<FONT color="green">031</FONT>    import org.apache.uima.resource.metadata.ResourceMetaData;<a name="line.31"></a>
<FONT color="green">032</FONT>    import org.apache.uima.resource.metadata.TypeSystemDescription;<a name="line.32"></a>
<FONT color="green">033</FONT>    import org.apache.uima.util.CasCreationUtils;<a name="line.33"></a>
<FONT color="green">034</FONT>    import org.uimafit.component.NoOpAnnotator;<a name="line.34"></a>
<FONT color="green">035</FONT>    import org.uimafit.factory.AnalysisEngineFactory;<a name="line.35"></a>
<FONT color="green">036</FONT>    <a name="line.36"></a>
<FONT color="green">037</FONT>    /**<a name="line.37"></a>
<FONT color="green">038</FONT>     * A class implementing iteration over a the documents of a collection. Each element in the Iterable<a name="line.38"></a>
<FONT color="green">039</FONT>     * is a JCas containing a single document. The documents have been loaded by the CollectionReader<a name="line.39"></a>
<FONT color="green">040</FONT>     * and processed by the AnalysisEngine (if any).<a name="line.40"></a>
<FONT color="green">041</FONT>     * <a name="line.41"></a>
<FONT color="green">042</FONT>     * @author Steven Bethard, Philip Ogren<a name="line.42"></a>
<FONT color="green">043</FONT>     */<a name="line.43"></a>
<FONT color="green">044</FONT>    public class JCasIterable implements Iterator&lt;JCas&gt;, Iterable&lt;JCas&gt; {<a name="line.44"></a>
<FONT color="green">045</FONT>    <a name="line.45"></a>
<FONT color="green">046</FONT>            private CollectionReader collectionReader;<a name="line.46"></a>
<FONT color="green">047</FONT>    <a name="line.47"></a>
<FONT color="green">048</FONT>            private AnalysisEngine[] analysisEngines;<a name="line.48"></a>
<FONT color="green">049</FONT>    <a name="line.49"></a>
<FONT color="green">050</FONT>            private JCas jCas;<a name="line.50"></a>
<FONT color="green">051</FONT>    <a name="line.51"></a>
<FONT color="green">052</FONT>            /**<a name="line.52"></a>
<FONT color="green">053</FONT>             * Iterate over the documents loaded by the CollectionReader. (Uses an JCasAnnotatorAdapter to<a name="line.53"></a>
<FONT color="green">054</FONT>             * create the document JCas.)<a name="line.54"></a>
<FONT color="green">055</FONT>             * <a name="line.55"></a>
<FONT color="green">056</FONT>             * @param reader<a name="line.56"></a>
<FONT color="green">057</FONT>             *            The CollectionReader for loading documents.<a name="line.57"></a>
<FONT color="green">058</FONT>             * @param typeSystemDescription<a name="line.58"></a>
<FONT color="green">059</FONT>             *            a type system description<a name="line.59"></a>
<FONT color="green">060</FONT>             * @throws UIMAException<a name="line.60"></a>
<FONT color="green">061</FONT>             * @throws IOException<a name="line.61"></a>
<FONT color="green">062</FONT>             */<a name="line.62"></a>
<FONT color="green">063</FONT>            public JCasIterable(CollectionReader reader, TypeSystemDescription typeSystemDescription)<a name="line.63"></a>
<FONT color="green">064</FONT>                            throws UIMAException, IOException {<a name="line.64"></a>
<FONT color="green">065</FONT>                    this(reader, AnalysisEngineFactory.createPrimitive(NoOpAnnotator.class,<a name="line.65"></a>
<FONT color="green">066</FONT>                                    typeSystemDescription));<a name="line.66"></a>
<FONT color="green">067</FONT>            }<a name="line.67"></a>
<FONT color="green">068</FONT>    <a name="line.68"></a>
<FONT color="green">069</FONT>            /**<a name="line.69"></a>
<FONT color="green">070</FONT>             * Iterate over the documents loaded by the CollectionReader, running the AnalysisEngine on each<a name="line.70"></a>
<FONT color="green">071</FONT>             * one before yielding them.<a name="line.71"></a>
<FONT color="green">072</FONT>             * <a name="line.72"></a>
<FONT color="green">073</FONT>             * @param reader<a name="line.73"></a>
<FONT color="green">074</FONT>             *            The CollectionReader for loading documents.<a name="line.74"></a>
<FONT color="green">075</FONT>             * @param engines<a name="line.75"></a>
<FONT color="green">076</FONT>             *            The AnalysisEngines for processing documents.<a name="line.76"></a>
<FONT color="green">077</FONT>             * @throws UIMAException<a name="line.77"></a>
<FONT color="green">078</FONT>             * @throws IOException<a name="line.78"></a>
<FONT color="green">079</FONT>             */<a name="line.79"></a>
<FONT color="green">080</FONT>            public JCasIterable(CollectionReader reader, AnalysisEngine... engines) throws UIMAException,<a name="line.80"></a>
<FONT color="green">081</FONT>                            IOException {<a name="line.81"></a>
<FONT color="green">082</FONT>                    this.collectionReader = reader;<a name="line.82"></a>
<FONT color="green">083</FONT>                    this.analysisEngines = engines;<a name="line.83"></a>
<FONT color="green">084</FONT>                    List&lt;ResourceMetaData&gt; metaData = new ArrayList&lt;ResourceMetaData&gt;();<a name="line.84"></a>
<FONT color="green">085</FONT>                    metaData.add(reader.getMetaData());<a name="line.85"></a>
<FONT color="green">086</FONT>                    for (AnalysisEngine engine : engines) {<a name="line.86"></a>
<FONT color="green">087</FONT>                            metaData.add(engine.getMetaData());<a name="line.87"></a>
<FONT color="green">088</FONT>                    }<a name="line.88"></a>
<FONT color="green">089</FONT>                    this.jCas = CasCreationUtils.createCas(metaData).getJCas();<a name="line.89"></a>
<FONT color="green">090</FONT>            }<a name="line.90"></a>
<FONT color="green">091</FONT>    <a name="line.91"></a>
<FONT color="green">092</FONT>            public Iterator&lt;JCas&gt; iterator() {<a name="line.92"></a>
<FONT color="green">093</FONT>                    return this;<a name="line.93"></a>
<FONT color="green">094</FONT>            }<a name="line.94"></a>
<FONT color="green">095</FONT>    <a name="line.95"></a>
<FONT color="green">096</FONT>            public boolean hasNext() {<a name="line.96"></a>
<FONT color="green">097</FONT>                    try {<a name="line.97"></a>
<FONT color="green">098</FONT>                            return this.collectionReader.hasNext();<a name="line.98"></a>
<FONT color="green">099</FONT>                    }<a name="line.99"></a>
<FONT color="green">100</FONT>                    catch (CollectionException e) {<a name="line.100"></a>
<FONT color="green">101</FONT>                            throw new RuntimeException(e);<a name="line.101"></a>
<FONT color="green">102</FONT>                    }<a name="line.102"></a>
<FONT color="green">103</FONT>                    catch (IOException e) {<a name="line.103"></a>
<FONT color="green">104</FONT>                            throw new RuntimeException(e);<a name="line.104"></a>
<FONT color="green">105</FONT>                    }<a name="line.105"></a>
<FONT color="green">106</FONT>            }<a name="line.106"></a>
<FONT color="green">107</FONT>    <a name="line.107"></a>
<FONT color="green">108</FONT>            public JCas next() {<a name="line.108"></a>
<FONT color="green">109</FONT>                    this.jCas.reset();<a name="line.109"></a>
<FONT color="green">110</FONT>                    try {<a name="line.110"></a>
<FONT color="green">111</FONT>                            this.collectionReader.getNext(this.jCas.getCas());<a name="line.111"></a>
<FONT color="green">112</FONT>                            for (AnalysisEngine engine : this.analysisEngines) {<a name="line.112"></a>
<FONT color="green">113</FONT>                                    engine.process(this.jCas);<a name="line.113"></a>
<FONT color="green">114</FONT>                            }<a name="line.114"></a>
<FONT color="green">115</FONT>                    }<a name="line.115"></a>
<FONT color="green">116</FONT>                    catch (CollectionException e) {<a name="line.116"></a>
<FONT color="green">117</FONT>                            throw new RuntimeException(e);<a name="line.117"></a>
<FONT color="green">118</FONT>                    }<a name="line.118"></a>
<FONT color="green">119</FONT>                    catch (IOException e) {<a name="line.119"></a>
<FONT color="green">120</FONT>                            throw new RuntimeException(e);<a name="line.120"></a>
<FONT color="green">121</FONT>                    }<a name="line.121"></a>
<FONT color="green">122</FONT>                    catch (AnalysisEngineProcessException e) {<a name="line.122"></a>
<FONT color="green">123</FONT>                            throw new RuntimeException(e);<a name="line.123"></a>
<FONT color="green">124</FONT>                    }<a name="line.124"></a>
<FONT color="green">125</FONT>                    return this.jCas;<a name="line.125"></a>
<FONT color="green">126</FONT>            }<a name="line.126"></a>
<FONT color="green">127</FONT>    <a name="line.127"></a>
<FONT color="green">128</FONT>            public void remove() {<a name="line.128"></a>
<FONT color="green">129</FONT>                    throw new UnsupportedOperationException();<a name="line.129"></a>
<FONT color="green">130</FONT>            }<a name="line.130"></a>
<FONT color="green">131</FONT>    }<a name="line.131"></a>




























































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